Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:35:48 2012

Optimize a model with 5235 rows, 812 columns and 16378 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.08s
Presolved: 5233 rows, 810 columns, 20747 nonzeros
Variable types: 0 continuous, 810 integer (810 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.733333e+00, 5620 iterations, 0.30 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    3.73333    0  524   28.00000    3.73333  86.7%     -    1s
H    0     0                      27.0000000    3.73333  86.2%     -    1s
     0     0    6.00000    0   90   27.00000    6.00000  77.8%     -    1s
H    0     0                      23.0000000    6.00000  73.9%     -    1s
H    0     0                       7.0000000    6.00000  14.3%     -    1s
     0     0    6.00000    0   18    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   16    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0  100    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   43    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   16    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   31    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   45    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   38    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   67    7.00000    6.00000  14.3%     -    2s
     0     0    6.00000    0   67    7.00000    6.00000  14.3%     -    2s
     0     2    6.00000    0   67    7.00000    6.00000  14.3%     -    2s

Cutting planes:
  Clique: 6
  Zero half: 3

Explored 11 nodes (17283 simplex iterations) in 2.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%